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Martínez-Albert E, Lutz ND, Hübener R, Dimitrov S, Lange T, Born J, Besedovsky L. Sleep promotes T-cell migration towards CCL19 via growth hormone and prolactin signaling in humans. Brain Behav Immun 2024; 118:69-77. [PMID: 38369248 DOI: 10.1016/j.bbi.2024.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 02/06/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024] Open
Abstract
Sleep strongly supports the formation of adaptive immunity, e.g., after vaccination. However, the underlying mechanisms remain largely obscure. Here we show in healthy humans that sleep compared to nocturnal wakefulness specifically promotes the migration of various T-cell subsets towards the chemokine CCL19, which is essential for lymph-node homing and, thus, for the initiation and maintenance of adaptive immune responses. Migration towards the inflammatory chemokine CCL5 remained unaffected. Incubating the cells with plasma from sleeping participants likewise increased CCL19-directed migration, an effect that was dependent on growth hormone and prolactin signaling. These findings show that sleep selectively promotes the lymph node homing potential of T cells by increasing hormonal release, and thus reveal a causal mechanism underlying the supporting effect of sleep on adaptive immunity in humans.
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Affiliation(s)
- Estefanía Martínez-Albert
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany; Institute of Medical Psychology, Ludwig-Maximilians-Universität München, 80336 Munich, Germany
| | - Nicolas D Lutz
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany; Institute of Medical Psychology, Ludwig-Maximilians-Universität München, 80336 Munich, Germany
| | - Robert Hübener
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany
| | - Stoyan Dimitrov
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany
| | - Tanja Lange
- Department of Rheumatology and Clinical Immunology, University of Lübeck, 23562 Lübeck, Germany; Center of Brain, Behavior and Metabolism (CBBM), University of Lübeck, 23562 Lübeck, Germany
| | - Jan Born
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany; Werner Reichardt Centre for Integrative Neuroscience, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany
| | - Luciana Besedovsky
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University of Tübingen, 72076 Tübingen, Germany; Institute of Medical Psychology, Ludwig-Maximilians-Universität München, 80336 Munich, Germany.
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Steffens A, Friesdorf M, Langen T, Rauer B, Schweigler T, Hübener R, Schmiedmayer J, Riofrío CA, Eisert J. Towards experimental quantum-field tomography with ultracold atoms. Nat Commun 2015; 6:7663. [PMID: 26138511 PMCID: PMC4506543 DOI: 10.1038/ncomms8663] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 05/22/2015] [Indexed: 11/23/2022] Open
Abstract
The experimental realization of large-scale many-body systems in atomic-optical architectures has seen immense progress in recent years, rendering full tomography tools for state identification inefficient, especially for continuous systems. To work with these emerging physical platforms, new technologies for state identification are required. Here we present first steps towards efficient experimental quantum-field tomography. Our procedure is based on the continuous analogues of matrix-product states, ubiquitous in condensed-matter theory. These states naturally incorporate the locality present in realistic physical settings and are thus prime candidates for describing the physics of locally interacting quantum fields. To experimentally demonstrate the power of our procedure, we quench a one-dimensional Bose gas by a transversal split and use our method for a partial quantum-field reconstruction of the far-from-equilibrium states of this system. We expect our technique to play an important role in future studies of continuous quantum many-body systems. Full tomography of the quantum state of a many-body system becomes harder as more and more atoms are included. Here the authors borrow a concept from condensed-matter physics, continuous matrix-product states, and present an efficient approach for experimental quantum-field tomography.
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Affiliation(s)
- A Steffens
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, Berlin 14195, Germany
| | - M Friesdorf
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, Berlin 14195, Germany
| | - T Langen
- Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Stadionallee 2, Vienna 1020, Austria
| | - B Rauer
- Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Stadionallee 2, Vienna 1020, Austria
| | - T Schweigler
- Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Stadionallee 2, Vienna 1020, Austria
| | - R Hübener
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, Berlin 14195, Germany
| | - J Schmiedmayer
- Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Stadionallee 2, Vienna 1020, Austria
| | - C A Riofrío
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, Berlin 14195, Germany
| | - J Eisert
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, Berlin 14195, Germany
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Abstract
Matrix product states and their continuous analogues are variational classes of states that capture quantum many-body systems or quantum fields with low entanglement; they are at the basis of the density-matrix renormalization group method and continuous variants thereof. In this work we show that, generically, N-point functions of arbitrary operators in discrete and continuous translation invariant matrix product states are completely characterized by the corresponding two- and three-point functions. Aside from having important consequences for the structure of correlations in quantum states with low entanglement, this result provides a new way of reconstructing unknown states from correlation measurements, e.g., for one-dimensional continuous systems of cold atoms. We argue that such a relation of correlation functions may help in devising perturbative approaches to interacting theories.
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Affiliation(s)
- R Hübener
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, 14195 Berlin, Germany
| | - A Mari
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, 14195 Berlin, Germany and Institute of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany and NEST, Scuola Normale Superiore and Istituto di Nanoscienze-CNR, 56126 Pisa, Italy
| | - J Eisert
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, 14195 Berlin, Germany
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Barthel T, Hübener R. Solving condensed-matter ground-state problems by semidefinite relaxations. Phys Rev Lett 2012; 108:200404. [PMID: 23003130 DOI: 10.1103/physrevlett.108.200404] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 01/07/2012] [Indexed: 06/01/2023]
Abstract
We present a generic approach to the condensed-matter ground-state problem which is complementary to variational techniques and works directly in the thermodynamic limit. Relaxing the ground-state problem, we obtain semidefinite programs (SDP). These can be solved efficiently, yielding strict lower bounds to the ground-state energy and approximations to the few-particle Green's functions. As the method is applicable for all particle statistics, it represents, in particular, a novel route for the study of strongly correlated fermionic and frustrated spin systems in D>1 spatial dimensions. It is demonstrated for the XXZ model and the Hubbard model of spinless fermions. The results are compared against exact solutions, quantum Monte Carlo calculations, and Anderson bounds, showing the competitiveness of the SDP method.
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Affiliation(s)
- Thomas Barthel
- Dahlem Center for Complex Quantum Systems, Freie Universität Berlin, 14195 Berlin, Germany
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Abram U, Voigt A, Kirmse R, Ortner K, Hübener R, Carballo R, Vazquez-Lopez E. Darstellung, Strukturen und EPR-Spektren der Rhenium(II)-Nitrosylkomplexe [Re(NO)Cl2(PPh3)(OPPh3)(OReO3)], [Re(NO)Cl2(OPPh3)2(OReO3)] und [Re(NO)Cl2(OPPh3)3](ReO4). Z Anorg Allg Chem 1998. [DOI: 10.1002/(sici)1521-3749(199810)624:10<1662::aid-zaac1662>3.0.co;2-u] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Hübener R, Abram U, Strähle J. Isothiocyanato Complexes of Rhenium. V. trans-Bis(isothiocyanato)(methoxy)(phenylimido)bis(triphenylphosphine)rhenium(V). Acta Crystallogr C 1995. [DOI: 10.1107/s0108270195000564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Dornberger K, Hübener R, Ihn W, Thrum H, Radics L. Microbial conversion of daunorubicin into N-acetyl-13(S)-dihydrodaunomycin and bisanhydro-13-dihydrodaunomycinone. J Antibiot (Tokyo) 1985; 38:1219-25. [PMID: 4066504 DOI: 10.7164/antibiotics.38.1219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
By using a strain of Streptomyces willmorii, daunorubicin (daunomycin) was stereoselectively converted into N-acetyl-13(S)-dihydrodaunomycin and bisanhydro-13-dihydrodaunomycinone. The absolute stereochemistry of the new chiral center in N-acetyl-13(S)-dihydrodaunomycin was established by means of nuclear Overhauser effect measured in the 9,13-O-isopropylidene derivative.
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Abstract
The effect of streptothricin F on macromolecular syntheses in intact cells and cell-free protein synthesis of E. coli was studied. The results indicate that protein synthesis is the primary site of inhibition by streptothricin F in growing E. coli cells. Cell-free polypeptide synthesis from E. coli directed by poly (U) was inhibited, while poly (A) and poly (C) directed polypeptide syntheses were both stimulated by the drug. Furthermore, streptothricin F caused misreading of translation of poly (U), poly (A) and poly (C) directed protein syntheses in E. coli systems. The extent of misreading by streptothricin F increases with increasing drug concentrations. The results are compared with those of other miscoding antibiotics. In rat liver extracts protein directed by poly (U) or endogenous mRNA was not inhibited.
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